print("[1] apple")
print("[2] pear")
print("[3] orange")
print("[4] grape")
print("[0] exit")
n=input().split(' ')
for i in range(0,5):
    if n[i]=='0':
        break
    else:
        if n[i]=='1':
            print("price = 3.00")
        elif n[i]=='2':
            print("price = 2.50")
        elif n[i]=='3':
            print("price = 4.10")
        elif n[i]=='4':
            print("price = 10.20")
        else:
            print("price = 0.00")